What’s the difference between septoplasty and rhinoplasty?

I keep seeing online that it’s common to have septoplasty and rhinoplasty performed together. Why is this and what exactly is septoplasty? What’s the difference between that and rhinoplasty?

Septum is the structure on the inside of the nose that separates the left side from the right side. If you have a deviated septum then a septoplasty can be done to improve the deviation and improve your breathing. That can be done without rhinoplasty but if you want to change the shape of the nose as well then combining the two surgeries makes the most sense and doing one without the other may complicate things.